Maintenance of air brake and air signal equipment on locomotives and cars :
adopted as standard 1925 : revised 1933 and 1934.

APA Citation

Association of American Railroads. Mechanical Division. (1935). Maintenance of air brake and air signal equipment on locomotives and cars: adopted as standard 1925 : revised 1933 and 1934. Washington, D.C.: Association of American Railroads.

MLA Citation

Association of American Railroads. Mechanical Division. Maintenance of Air Brake And Air Signal Equipment On Locomotives And Cars: Adopted As Standard 1925 : Revised 1933 And 1934. Washington, D.C.: Association of American Railroads, 1935.

Warning: These citations may not always be complete (especially for serials).